Citrate containing beverage

ABSTRACT

Provided are beverage compositions comprising a urine citrate increasing component and a urine oxalate reducing component. The beverage compositions may be provided in a ready-to-drink form or may be provided in a concentrate form. Also provided are kits comprising the beverage compositions and methods for treating various conditions using the beverage compositions.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to U.S. Provisional application No.61/793,442, filed on Mar. 15, 2013, the disclosure of which isincorporated herein by reference in its entirety.

BACKGROUND OF THE INVENTION

Kidney stones are a common cause of morbidity, with a lifetime worldwideprevalence of 5-10%. In the absence of prevention, recurrence is common,with over 50% of patients having a recurrent stone episode within 5-10years of their first stone. The most common stone type is calciumoxalate. A second type of stone that may occur is calcium phosphate.Calcium-based stones comprise roughly 80% of all stones. At least 10% ofstones are composed of uric acid and about 1% of stones (and 6% ofstones in children) are composed of cystine.

Although it is considered that patients are amenable to modifying theireating and drinking habits in preference to taking prescription pillsfor the prevention of various conditions, there is no beverage currentlyavailable that is designed to increase urine citrate and pH, whilereducing urinary calcium.

SUMMARY OF THE DISCLOSURE

The present invention is based, in part, on the inventors' surprisingand unexpected discovery that beverages made in accordance with theinvention and comprising a urine citrate increasing component and aurine oxalate reducing component have improved benefits in themanagement of kidney stones as compared to prior art compositions. Theinvention encompasses a beverage comprising a urine citrate increasingcomponent and a urine oxalate reducing component. The inventioncontemplates beverages to be ready to drink or alternativelyreconstituted from powdered mixes, concentrated liquid (concentrate) ortablets.

In a specific embodiment, the urine citrate increasing componentcomprises sodium citrate, potassium citrate or magnesium citrate, orcombinations thereof. In one specific preferred embodiment, theinvention provides a beverage comprising sodium citrate, potassiumcitrate, magnesium citrate, citric acid, pyridoxine and combinationsthereof.

In some embodiments, the oxalate reducing component is a magnesium salt.In one specific preferred embodiment, the magnesium salt is magnesiumhydroxide.

In other preferred embodiments, the oxalate reducing component isselected from the group consisting of a magnesium, pyridoxine andcombinations thereof.

In some embodiments, the beverage of the invention comprises citrate,magnesium and pyridoxine.

In some embodiments, the beverage of the invention further comprisesvitamins, minerals, phytate, amino acids and combinations thereof.

In one specific embodiment, the beverages of the invention arecalorie-free. In another specific embodiment the beverages of theinvention are calcium free.

The invention encompasses methods for management of kidney stone diseasein a human in need thereof comprising administration of a beveragecomprising a urine citrate increasing component and a urine oxalatereducing component.

In other embodiments, the invention encompasses methods for managementof bone disease in a human in need thereof comprising administration ofa beverage comprising a urine citrate increasing component and a urineoxalate reducing component.

In one specific embodiment, the beverages in accordance with theinvention comprise: 1.0 to 4.0 mmol/L sodium citrate; 3.0 to 7.5 mmol/Lpotassium citrate; 15 to 25 mmol/L citric acid; 1 to 3 mmol/L magnesiumhydroxide; and 1.5-3.5 mg/L pyridoxine, wherein the pH of the beverageis 3.3-7.0.

In another specific embodiment, the beverages in accordance with theinvention comprise: 3.33 mmol/L sodium citrate; 5.0 mmol/L potassiumcitrate; 19.67 mmol/L citric acid; 2.0 mmol/L magnesium hydroxide; and2.5 mg/L pyridoxine, wherein the pH of the beverage is 3.5.

The invention also encompasses methods for increasing urinary citrateand reducing urinary oxalate by providing a beverage to an individual,said beverage comprising 1 to 4.0 mmol/L sodium citrate; 3.0 to 7.5mmol/L potassium citrate; 15 to 25 mmol/L citric acid; 1 to 3 mmol/Lmagnesium hydroxide; and 1.5-3.5 mg/L pyridoxine, wherein the pH of thebeverage is 3.3-7.0.

In one specific embodiment, the invention provides a method forincreasing urinary citrate and reducing urinary oxalate by providing abeverage to an individual, said beverage comprising 3.33 mmol/L sodiumcitrate; 5.0 mmol/L potassium citrate; 19.67 mmol/L citric acid; 2.0mmol/L magnesium hydroxide; and 2.5 mg/L pyridoxine, wherein the pH ofthe beverage is 3.5.

In another specific embodiment, the invention provides a method formanagement of kidney stones in a human in need thereof comprisingadministering a beverage to the human, said beverage comprising 1 to 4.0mmol/L sodium citrate; 3.0 to 7.5 mmol/L potassium citrate; 15 to 25mmol/L citric acid; 1 to 3 mmol/L magnesium hydroxide; and 1.5-3.5 mg/Lpyridoxine, wherein the pH of the beverage is 3.3-7.0.

In yet another specific embodiment, the invention provides a method formanagement of kidney stones in a human in need thereof comprisingadministering a beverage to the human, said beverage comprising 3.33mmol/L sodium citrate; 5.0 mmol/L potassium citrate; 19.67 mmol/L citricacid; 2.0 mmol/L magnesium hydroxide; and 2.5 mg/L pyridoxine, whereinthe pH of the beverage is 3.5.

In another specific embodiment, the invention provides a methodmanagement of bone disease in a human in need thereof comprisingadministering a beverage to the human, said beverage comprising 1 to 4.0mmol/L sodium citrate; 3.0 to 7.5 mmol/L potassium citrate; 15 to 25mmol/L citric acid; 1 to 3 mmol/L magnesium hydroxide; and 1.5-3.5 mg/Lpyridoxine, wherein the pH of the beverage is 3.3-7.0.

In another specific embodiment, the invention provides a method formanagement of bone disease in a human in need thereof comprisingadministering a beverage to the human, said beverage comprising 3.33mmol/L sodium citrate; 5.0 mmol/L potassium citrate; 19.67 mmol/L citricacid; 2.0 mmol/L magnesium hydroxide; and 2.5 mg/L pyridoxine, whereinthe pH of the beverage is 3.5.

The invention also provides a kit comprising a powdered mix, aconcentrate, or a tablet comprising:

-   -   (a) sodium citrate, potassium citrate, citric acid, magnesium        hydroxide, and pyridoxine in amounts such that a beverage        prepared from it will have 1.0 to 4.0 mmol sodium citrate, 3.5        to 7.5 mmol potassium citrate, 15 to 25 mmol citric acid, 1 to 3        mmol magnesium hydroxide, and 1.5 to 3.5 mg pyridoxine per        liter;    -   (b) packaging for a container;    -   (c) a container; and    -   (d) a set of instructions, said instructions describing how to        prepare and store a beverage using the powdered mix or the        tablet and describing the frequency and volume of the beverage        to be consumed by an individual.

In another specific embodiment, the invention provides a kit comprisinga powdered mix, a concentrate, or a tablet comprising:

-   -   (a) sodium citrate, potassium citrate, citric acid, magnesium        hydroxide, and pyridoxine in amounts such that a beverage        prepared from it will have 3.33 mmol sodium citrate, 5.0 mmol        potassium citrate, 19.67 mmol citric acid, 2.0 mmol magnesium        hydroxide, and 2.5 mg pyridoxine per liter;    -   (b) packaging for a container;    -   (c) a container; and    -   (d) a set of instructions, said instructions describing how to        prepare and store a beverage using the powdered mix or the        tablet and describing the frequency and volume of the beverage        to be consumed by an individual

In one embodiment, the invention provides a kit comprising:

-   -   (a) a powdered mix, a concentrate, or a tablet comprising sodium        citrate, potassium citrate, citric acid, magnesium hydroxide,        and pyridoxine in amounts such that a beverage prepared from it        will have 1.0 to 4.0 mmol sodium citrate, 3.5 to 7.5 mmol        potassium citrate, 15 to 25 mmol citric acid, 1 to 3 mmol        magnesium hydroxide, and 1.5 to 3.5 mg pyridoxine per liter;    -   (b) a set of instructions, said instructions describing how to        prepare and store a beverage using the powdered mix, concentrate        or the tablet and describing the frequency and volume of the        beverage to be consumed by an individual.

In another embodiment, the invention provides a kit comprising

-   -   (a) a powdered mix, a concentrate, or a tablet comprising sodium        citrate, potassium citrate, citric acid, magnesium hydroxide,        and pyridoxine in amounts such that a beverage prepared from it        will have 3.33 mmol sodium citrate, 5.0 mmol potassium citrate,        19.67 mmol citric acid, 2.0 mmol magnesium hydroxide, and 2.5 mg        pyridoxine per liter;    -   (b) a set of instructions, said instructions describing how to        prepare and store a beverage using the powdered mix or the        tablet and describing the frequency and volume of the beverage        to be consumed by an individual.

In other embodiments, the kit comprises a plurality of portions ofpowdered mixes, concentrates or tablets and a preselected amount ofaqueous liquid (such as water) such that each powdered mix, concentrateor tablet when mixed with the preselected amount of water will provide abeverage as described in the various embodiments herein. Each portion ofthe powdered mix, concentrate or tablet may be packaged individually inthe kit.

The kits of the invention are contemplated to include ready to drinkbeverages made in accordance with the invention.

Additional aspects and advantages of the invention will be set forth inthe description which follows and, in part, will be obvious from thedescription, or may be learned from practicing the invention as setforth herein. The objects and advantages of the invention will berealized and attained by means of the elements and combinationsparticularly pointed out herein and specified in the claims. It is to beunderstood that both the foregoing general description and the followingdetailed description are exemplary and explanatory and do not restrictthe invention as claimed.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 is a representation of a scheme for a trial for testing theeffect of consumption of a beverage of the present invention.

DETAILED DESCRIPTION OF THE DISCLOSURE

The present disclosure provides a beverage comprising citrate in anamount that delivers clinically significant citrate to individuals suchthat the occurrence of kidney stones is prevented or reduced. Thebeverage comprises a urine citrate-increasing component and a urineoxalate-reducing component. Consumption of the beverage raises the urinecitrate levels, raises urine pH, and reduces urine oxalate levels. Theterms beverage and drink are used interchangeably in this description.In one embodiment, urine citrate and pH are increased, while urinecalcium is decreased.

In one embodiment, the urine citrate increasing component comprises,consists essentially of, or consists of sodium citrate, potassiumcitrate, and citric acid, and the urine oxalate reducing componentcomprises, consists essentially of, or consists of a magnesium salt(such as magnesium hydroxide) and pyridoxine.

In one embodiment, the beverage of the present disclosure comprisessodium citrate, potassium citrate, citric acid, magnesium hydroxide andpyridoxine. The ingredients are present in such amounts that urinecitrate and pH are increased while not altering other urine chemistries.In one embodiment, the citrate may be magnesium citrate instead of or inaddition to sodium citrate and potassium citrate. In one embodiment, thecitrate comprises, consists essentially of, or consists of potassiumcitrate and magnesium citrate.

While not intending to be bound by any particular theory, it isconsidered that the sodium cation improves palatability and alsoprovides a delivery vehicle for high levels of citrate that is notexclusively associated with potassium. In one embodiment, the amount ofsodium citrate can be from 0.5 to 5 mmol/L and all amounts therebetweento the tenth decimal place and includes all ranges therebetween. Inanother embodiment, it is present from 1.0 to 4.0 mmol/L. In anotherembodiment, it is present from 3.0 to 3.5 mmol/L.

In one embodiment, the beverage is sodium-free. In this embodiment, thebeverage may comprise potassium citrate, optionally magnesium citrate,citric acid, magnesium hydroxide, and pyridoxine.

In one embodiment, more potassium is present than sodium. However, thelevels of potassium should not be such that it would result inhyperkalemia. In one embodiment, potassium citrate is present from 3.5to 7.5 mmol/L and all amounts therebetween to the tenth decimal placeand includes all ranges therebetween. In another embodiment, it ispresent from 4.0 to 6.0 mmol/L. In another embodiment it is present from4.5 to 5.5 mmol/L.

The present beverage also comprises citric acid. In one embodiment, theamount of citric acid is from 15 to 25 mmol/L and all amountstherebetween to the tenth decimal place and includes all rangestherebetween. In another embodiment, the citric acid is present from 17to 23 mmol/L.

The amount of citrate (calculated from citric acid, sodium citrate, andpotassium citrate) is from 20 to 30 mmol/L and all amounts therebetweento the tenth decimal place and includes all ranges therebetween. In oneembodiment, the citrate is from 23 to 27 mmol/L.

In one embodiment, the ratio of sodium to potassium is from 1:1.1 to1:2. In another embodiment, it is from 1:1.3 to 1:1.7. In anotherembodiment, it is from 1:1.4 to 1:1.6.

To further aid in the prevention or amelioration of kidney stones, thepresent beverage contains magnesium compounds. Magnesium is a cationthat can bind with oxalate in the urine and therefore interfere with thecomplexing of oxalate with calcium. In one embodiment, the magnesiumcompound is magnesium hydroxide. In one embodiment, in addition to, orinstead of magnesium hydroxide, magnesium citrate may be used. Theamount of magnesium hydroxide is from 1 to 3 mmol/L and all amountstherebetween to the tenth decimal place and includes all rangestherebetween. In one embodiment, it is from 1.5 to 2.5 mmol/L.

The present beverage also comprises pyridoxine (Vitamin B6). The amountof pyridoxine is from 1.5 to 3.5 mg/L and all amounts therebetween tothe tenth decimal place, and includes all ranges therebetween. In oneembodiment, the amount is from 2 to 3 mg/L.

In one embodiment, the beverage of the present invention contains nocalcium. In other embodiments, it contains less than 0.1, 0.05 or 0.01mmol/L of calcium. In one embodiment, the calcium may be higher—i.e., upto 2.5 mmol/L.

The pH of the composition upon mixing of the ingredients is about 3.5.It is generally from 3.4 to 3.7 and all values to the tenth decimalplace therebetween. It can be adjusted upward to a pH of from 3.5 to 7.0and all values to the tenth decimal place therebetween and includes allranges therebetween. In one embodiment, it is from 3.4 to 4.0.

In one embodiment, the calorie content of the beverage is less than 1.In one embodiment, the caloric content is 0. In another embodiment, thebeverage has less than 5 calories (and can therefore, be considered“calorie free”). In another embodiment, it is a low calorie drink. Theterm “low calorie” as used herein means 40 calories or less. In otherembodiments, the caloric content is from 1 to 40 calories and allintegers and ranges therebetween. In other embodiments, the drink mayhave more than 40 calories.

A variety of flavors and/or colors can be added to the beverage asdesired. In one embodiment, the color, flavor or other additive does notadd any caloric value to the drink and does not alter the sodium,potassium or citrate parameters as described herein. Flavors may benatural or artificial. Examples of suitable flavors include lemon,orange, banana, strawberry, other fruits, fruit punch and the like.

In one embodiment, the composition of the present invention can alsoinclude vitamins, minerals, phytate and/or amino acids or othernutrients. Suitable vitamins include vitamin B1, vitamin B2,niacinamide, vitamin B12, folic acid, vitamin C, and vitamin E. Suitableminerals include iron, zinc, vanadium, selenium, chromium, boron,potassium, manganese, copper and magnesium. Suitable amino acids includelysine, isoleucine, leucine, threonine, valine, tryptophan,phenylalanine, methionine and L-selenomethionine, Additionally, wettingagents may also be included to improve mouth feel. In one embodiment,the beverage is a clear drink or a translucent drink.

While not intending to be bound by any particular theory, it isconsidered that increase in urine citrate and/or the reduction inurinary calcium is obtained, at least in part, due to the“citrate-as-alkali” effect. The organic anions of the presentcomposition are accompanied by positively charged ions (cations) such assodium or potassium. Therefore, instead of a proton (as would be thecase for organic acids like acetic acid or citric acid), the carboxylyields a bicarbonate without yielding a proton, and leads to netformation of base, which can neutralize other protons in the body,leading to an increase in blood pH and then urine pH and urine citrate.Because blood bicarbonate is readily excreted by the kidneys the pH ofthe blood changes only slightly while the urine pH will increase. Werefer to this as “citrate-as-alkali”—the form of ingested citrate whichleads to increased blood pH, urine citrate, urine pH, and therefore toreduction in kidney stone formation.

In one embodiment, other agents may be added that contribute toincreasing the urinary pH. For example, malate or organic anions can beadded.

In one embodiment, the present beverage may contain agents which canenhance the flavor or appearance of the beverage, but which do notaffect the citrate or oxalate content of the urine or the ratio ofsodium to potassium. These agents are referred to herein as “non-active”agents. In one embodiment, the non-active agents do not change thesodium or potassium content. In one embodiment, the non-active agents donot change the sodium or potassium content by more than 0.1%.

The beverage can be packaged in suitable containers such as bottles,cans, cardboard packages or the like in any suitable size including upto 0.5, 1 or 2 liter portions. The beverages can be aseptically packagedand stored at ambient temperatures (generally from 65 to 75 F) or atrefrigeration temperatures.

In one embodiment, instead of a beverage, all of the above formulationscan be provided in the form of powdered mixes, concentrated liquid(concentrate) or tablets. In one embodiment, the present inventionprovides a kit comprising a powdered mix, concentrated liquid or atablet, which upon mixing with a suitable liquid (such as water) ordiluting (if it is concentrate), will provide the beverage of thepresent invention. The kit may also contain a set of instruction forpreparing the beverage from the powdered mix, concentrate or the tabletand for consumption (such as over a 24 hour period). The set ofinstructions may provide the frequency and the amount of beverage to beconsumed over a 24 hour (or other selected) period. The set ofinstructions may also provide storage recommendations. The powdered mix,concentrate and the tablets can be packaged in suitablecontainments—such as paper packages or pouches for the powdered mix,cartons, bottles, containers, or boxes for the concentrate, and blisterpackages for tablets. The powdered mix, concentrate or the tablet can beportioned such that they can be made into a preselected volume ofbeverage. For example, the powdered mix, concentrate or the tablet canbe portioned such that it makes up a quart, half liter or a liter ofbeverage. Further, a kit may contain multiple pouches of the powderedmix and one or more sheets of the blister packaged tablet. The termtablets includes any compacted form of the powdered formulationincluding pills, caplets and the like. The kit may also contain theliquid for making up the beverage. For example, the kit may contain ameasured amount of liquid for adding the powdered mix, concentrate orthe tablet. Packaging can be compartmentalized such that the powderedmix, concentrate or the tablet is in one compartment and a measuredamount of liquid in the other. The partition between these compartmentsmay be such that it can be pierced or removed with or without exposingthe contents to the outside thereby allowing mixing of the contents ofthe two compartments. The packaging can be in suitable portions allowingpacking together of the supply for a day or a week or a month etc.

In one embodiment, the beverage of the present disclosure provides acalorie-free and calcium-free beverage. One to 2 liters of the beveragecan be conveniently consumed over a 24 hour period to increase urinarycitrate levels and reduce urinary oxalate levels, while not affectingother chemistries. This drink will be useful for individuals who havebeen diagnosed with kidney stones, for individuals who are at risk fordeveloping stones, and generally for any individual for the preventionof kidney stones. This drink is also useful for general consumption suchas as a thirst quencher. The beverage may be consumed by humans—bothadults and children of all ages. It may also be used for consumption byanimals. It may be used by individuals who are in need of increasingurine citrate levels, raising urine pH, or reducing urine oxalatelevels. It may also be used by individuals with no known diagnoseddisease conditions or by individuals having disease conditions (whetherdiagnosed or not) including individuals with bone diseases.

In one embodiment, the present disclosure provides a beverage which isorganoleptically acceptable to consumers, and in a 1 literpackage/container provides to the consumer from 1 to 4 mmol of sodiumcitrate, 4 to 6 mmol of potassium citrate, 15 to 25 mmol of citric acid,1.5 to 3.5 mg of pyridoxine, and 1 to 3 mmol of magnesium hydroxide. Inone embodiment, the 1 liter beverage does not contain any other salts.In one embodiment, the 1 liter beverage does not contain any othersodium or potassium salts or any other citrate, and does not contain anyother agent that would alter the amount of oxalate in the urine.Non-active agents like color and flavors may be added to the beverage.The beverage may be calorie-free, low calorie or may provide more than40 calories.

In another embodiment, the present disclosure provides a beverage whichis organoleptically acceptable to consumers, and in a 1 literpackage/container provides to the consumer from 3 to 3.5 mmol of sodiumcitrate, 4.5 to 5.5 mmol of potassium citrate, 18 to 22 mmol of citricacid, 2 to 3 mg of pyridoxine, and 1.5 to 2.5 mmol of magnesiumhydroxide. In one embodiment, the 1 liter beverage does not contain anyother sodium or potassium salts or any other citrate, and does notcontain any other agent that would alter the amount of oxalate in theurine. However, non-active agents like color and flavors may be added tothe beverage. The beverage may be calorie-free, low calorie or mayprovide more than 40 calories.

The present disclosure also provides a method for preventing or reducingthe occurrence of kidney stones. The method comprises providing to anindividual a beverage of the present invention in an amount that issufficient to reduce or prevent the formation of kidney stones. It isconsidered that the present beverage alters urine composition to makethe urine less hospitable for kidney stone formation, by raising urinecitrate and urine pH. The present beverage also lowers urine oxalatelevels. In one embodiment, an individual consumes from 1 to 2 liters ofthe beverage per day (24 hour period).

The present compositions may also be used to improve bone mineraldensity and therefore, for the treatment, prevention or reduction ofosteoporosis, osteopenia and metastatic bone cancer. In one embodiment,the compositions may be used in the treatment, prevention or reductionof chronic renal insufficiency.

In one embodiment, the beverage may contain from, 0.1% to 10% sweetenersand all percentages to the tenth decimal place therebetween. Thesweeteners may be nutritive and non-nutritive, natural and artificial orsynthetic. Such sweeteners are well known in the art.

In some aspects and embodiments, the present disclosure provides thefollowing:

A calorie-free, calcium-free beverage consisting essentially of aurinary citrate increasing component and a urinary oxalate reducingcomponent.

A calorie free, calcium free beverage consisting essentially of 1.0 to4.0 mmol/L sodium citrate, 3.5 to 7.5 mmol/L potassium citrate, 15 to 25mmol/L citric acid, 1 to 3 mmol/L magnesium hydroxide, and 1.5 to 3.5mg/L pyridoxine, wherein the pH of the beverage is from 3.3 to 7.0.

A method for increasing urinary citrate and reducing urinary oxalate byproviding a beverage to an individual, said beverage essentiallyconsisting of 1.0 to 4.0 mmol/L sodium citrate, 3.5 to 7.5 mmol/Lpotassium citrate, 15 to 25 mmol/L citric acid, 1 to 3 mmol/L magnesiumhydroxide, and 1.5 to 3.5 mg/L pyridoxine, wherein the pH of thebeverage is from 3.3 to 7.0.

A method of preventing or reducing the occurrence of kidney stones byproviding a beverage to an individual, said beverage comprising aurinary citrate increasing component and a urinary oxalate reducingcomponent, wherein said beverage in a volume of 1-2 liters is consumedby the individual over a 24 hour period.

A kit comprising a powdered mix a concentrate or a tablet comprisingsodium citrate, potassium citrate, citric acid, magnesium hydroxide, andpyridoxine in amounts such that a beverage prepared from it will have1.0 to 4.0 mmol sodium citrate, 3.5 to 7.5 mmol potassium citrate, 15 to25 mmol citric acid, 1 to 3 mmol magnesium hydroxide, and 1.5 to 3.5 mgpyridoxine per liter, packaged in a containment, and a set ofinstructions, said instructions describing how to prepare and store abeverage using the powdered mix or the tablet and describing thefrequency and volume of the beverage to be consumed by an individual.

Examples of some specific embodiments of this disclosure are providedbelow:

A beverage comprising a urine citrate increasing component and a urineoxalate reducing component.

A beverage comprising a urine citrate increasing component and a urineoxalate reducing component, wherein the urine citrate increasingcomponent comprises sodium citrate.

A beverage comprising a urine citrate increasing component and a urineoxalate reducing component, wherein the urine citrate increasingcomponent comprises potassium citrate.

A beverage comprising a urine citrate increasing component and a urineoxalate reducing component, wherein the urine citrate increasingcomponent comprises magnesium citrate.

A beverage comprising a urine citrate increasing component and a urineoxalate reducing component wherein the urine citrate increasingcomponent is selected from the group consisting of sodium citrate,potassium citrate, magnesium citrate and combinations thereof.

A beverage comprising sodium citrate, potassium citrate, magnesiumcitrate, citric acid, pyridoxine and combinations thereof.

A beverage comprising a urine citrate increasing component and a urineoxalate reducing component, wherein the oxalate reducing component is amagnesium salt.

A beverage comprising a urine citrate increasing component and a urineoxalate reducing component, wherein the oxalate reducing component is amagnesium salt and wherein the magnesium salt is magnesium hydroxide.

A beverage comprising a urine citrate increasing component and a urineoxalate reducing component, wherein the oxalate reducing component isselected from the group consisting of a magnesium, pyridoxine andcombinations thereof.

A beverage comprising a urine citrate increasing component and a urineoxalate reducing component, and further comprising vitamins, minerals,phytate, amino acids and combinations thereof.

A calorie-free beverage comprising a urine citrate increasing componentand a urine oxalate reducing component.

A calcium-free beverage comprising a urine citrate increasing componentand a urine oxalate reducing component.

A method for management of kidney stone disease in a human in needthereof comprising administration of a beverage comprising a urinecitrate increasing component and a urine oxalate reducing component.

A method for management of bone disease in a human in need thereofcomprising administration of a beverage comprising a urine citrateincreasing component and a urine oxalate reducing component.

A beverage comprising citrate, magnesium, and pyridoxine.

A beverage comprising citrate, magnesium, and pyridoxine, wherein thesource of citrate ions is selected from the group consisting of sodiumcitrate, potassium citrate, magnesium citrate and combinations thereof.

A beverage comprising citrate, magnesium, and pyridoxine, wherein thesource of magnesium is magnesium hydroxide or magnesium citrate.

A beverage comprising:

(1) 1.0 to 4.0 mmol/L sodium citrate;

(2) 3.0 to 7.5 mmol/L potassium citrate;

(3) 15 to 25 mmol/L citric acid;

(4) 1 to 3 mmol/L magnesium hydroxide; and

(5) 1.5-3.5 mg/L pyridoxine

wherein the pH of the beverage is 3.3-7.0.

A beverage comprising:

(1) 3.33 mmol/L sodium citrate

(2) 5.0 mmol/L potassium citrate;

(3) 19.67 mmol/L citric acid;

(4) 2.0 mmol/L magnesium hydroxide; and

(5) 2.5 mg/L pyridoxine

wherein the pH of the beverage is 3.5.

A beverage comprising: 1.0 to 4.0 mmol/L sodium citrate; 3.0 to 7.5mmol/L potassium citrate; 15 to 25 mmol/L citric acid; 1 to 3 mmol/Lmagnesium hydroxide; and 1.5-3.5 mg/L pyridoxine, wherein the pH of thebeverage is 3.3-7.0 and wherein the beverage is calcium-free.

A beverage comprising: 1.0 to 4.0 mmol/L sodium citrate; 3.0 to 7.5mmol/L potassium citrate; 15 to 25 mmol/L citric acid; 1 to 3 mmol/Lmagnesium hydroxide; and 1.5-3.5 mg/L pyridoxine, wherein the pH of thebeverage is 3.3-7.0 and wherein the beverage is calorie-free.

A beverage comprising 3.33 mmol/L sodium citrate; 5.0 mmol/L potassiumcitrate; 19.67 mmol/L citric acid; 2.0 mmol/L magnesium hydroxide; and2.5 mg/L pyridoxine, wherein the pH of the beverage is 3.5 and whereinthe beverage is calcium-free.

A beverage comprising 3.33 mmol/L sodium citrate; 5.0 mmol/L potassiumcitrate; 19.67 mmol/L citric acid; 2.0 mmol/L magnesium hydroxide; and2.5 mg/L pyridoxine, wherein the pH of the beverage is 3.5 and whereinthe beverage is calorie-free

A method for increasing urinary citrate and reducing urinary oxalate byproviding a beverage to an individual, said beverage comprising 1 to 4.0mmol/L sodium citrate; 3.0 to 7.5 mmol/L potassium citrate; 15 to 25mmol/L citric acid; 1 to 3 mmol/L magnesium hydroxide; and 1.5-3.5 mg/Lpyridoxine, wherein the pH of the beverage is 3.3-7.0.

A method for increasing urinary citrate and reducing urinary oxalate byproviding a beverage to an individual, said beverage comprising 3.33mmol/L sodium citrate; 5.0 mmol/L potassium citrate; 19.67 mmol/L citricacid; 2.0 mmol/L magnesium hydroxide; and 2.5 mg/L pyridoxine, whereinthe pH of the beverage is 3.5.

A method for management of kidney stones in a human in need thereofcomprising administering a beverage to the human, said beveragecomprising 1 to 4.0 mmol/L sodium citrate; 3.0 to 7.5 mmol/L potassiumcitrate; 15 to 25 mmol/L citric acid; 1 to 3 mmol/L magnesium hydroxide;and 1.5-3.5 mg/L pyridoxine, wherein the pH of the beverage is 3.3-7.0.

A method for management of kidney stones in a human in need thereofcomprising administering a beverage to the human, said beveragecomprising 3.33 mmol/L sodium citrate; 5.0 mmol/L potassium citrate;19.67 mmol/L citric acid; 2.0 mmol/L magnesium hydroxide; and 2.5 mg/Lpyridoxine, wherein the pH of the beverage is 3.5.

A method for management of bone disease in a human in need thereofcomprising administering a beverage to the human, said beveragecomprising 1 to 4.0 mmol/L sodium citrate; 3.0 to 7.5 mmol/L potassiumcitrate; 15 to 25 mmol/L citric acid; 1 to 3 mmol/L magnesium hydroxide;and 1.5-3.5 mg/L pyridoxine, wherein the pH of the beverage is 3.3-7.0

A method for management of bone disease in a human in need thereofcomprising administering a beverage to the human, said beveragecomprising 3.33 mmol/L sodium citrate; 5.0 mmol/L potassium citrate;19.67 mmol/L citric acid; 2.0 mmol/L magnesium hydroxide; and 2.5 mg/Lpyridoxine, wherein the pH of the beverage is 3.5.

A kit comprising a powdered mix a concentrate or a tablet comprising:

-   -   (a) sodium citrate, potassium citrate, citric acid, magnesium        hydroxide, and pyridoxine in amounts such that a beverage        prepared from it will have 1.0 to 4.0 mmol sodium citrate, 3.5        to 7.5 mmol potassium citrate, 15 to 25 mmol citric acid, 1 to 3        mmol magnesium hydroxide, and 1.5 to 3.5 mg pyridoxine per        liter;    -   (b) packaging for a container;    -   (c) a container; and    -   (d) a set of instructions, said instructions describing how to        prepare and store a beverage using the powdered mix or the        tablet and describing the frequency and volume of the beverage        to be consumed by an individual.

A kit comprising a powdered mix a concentrate or a tablet comprising:

-   -   (a) sodium citrate, potassium citrate, citric acid, magnesium        hydroxide, and pyridoxine in amounts such that a beverage        prepared from it will have 3.33 mmol sodium citrate, 5.0 mmol        potassium citrate, 19.67 mmol citric acid, 2.0 mmol magnesium        hydroxide, and 2.5 mg pyridoxine per liter;    -   (b) packaging for a container;    -   (c) a container; and    -   (d) a set of instructions, said instructions describing how to        prepare and store a beverage using the powdered mix or the        tablet and describing the frequency and volume of the beverage        to be consumed by an individual.

A beverage concentrate comprising a urine citrate increasing componentand a urine oxalate reducing component.

A beverage concentrate comprising a urine citrate increasing componentand a urine oxalate reducing component wherein the urine increasingcomponent is selected from the group consisting of sodium citrate,potassium citrate, magnesium citrate and combinations thereof.

The following examples are provided as illustrative examples and are notintended to be restrictive in any way.

EXAMPLE 1

This example provides results obtained from ingestion of the beverage onurine composition. A placebo controlled trial was performed in which 24hour urine samples were collected while drinking 2 L of water (placebo)and then a subsequent 24-hour urine sample was collected while drinking2 L of the present beverage. The protocol followed for the trial isshown in FIG. 1. The Washout phase is between the placebo phase and theexperimental phase. During the washout phase, the diet was ad lib(meaning the individuals consumed what they wanted.). The beverage hadthe following composition.

Sodium Citrate 3.33 mmol/liter  Potassium Citrate 5.0 mmol/liter CitricAcid 19.67 mmol/liter  Mg(OH)₂ 2.0 mmol/liter Pyridoxine 2.5 mg/liter 

The pH of the composition was 3.5. Ten participants have completed thetrial and for each, significant increase in pH, citrate, and potassiumand significant decrease in calcium and supersaturation of uric acid(SSUA) was observed. Data (average values) are provided in the tablebelow.

Present Statistical Urine Parameter Placebo formulation significanceCalcium 206.1 mg/day 158.6 mg/day 0.04 Citrate 616.4 mg/day 945.1 mg/day<0.0001 pH 6.33 6.97 0.0003 Supersaturation of 0.37 0.12 0.02 uric acid(SSUA) Potassium 74.7 mEq/day 96.7 mEq/day 0.001

It is considered that the increase in citrate and decrease in calciumboth indicate that the drink decreases the likelihood of producing acalcium oxalate stone if given to a calcium stone former. The increasein pH and the decrease in SSUA indicate that the drink decreases thelikelihood of making a uric acid stone if given to a uric acid stoneformer. The increase in pH indicates that the drink decreases thelikelihood of producing a cystine stone if given to a cystine stoneformer. The increase in potassium indicates that the participants did“absorb” the potassium in the drink and were compliant during the trial(If they didn't drink the drink in the right amounts, the potassiumwould not have changed).

What is claimed is:
 1. A beverage comprising sodium citrate, potassiumcitrate, citric acid, magnesium salt and pyridoxine, wherein themagnesium salt is magnesium citrate or magnesium hydroxide.
 2. Thebeverage of claim 1, wherein the ratio of potassium citrate to sodiumcitrate is 1.1:1.0, 1.2:1.0, or 1.3:1.0 to 1.7:1.0.
 3. The beverage ofclaim 1, further comprising vitamins, minerals, phytate, amino acids, orcombinations thereof.
 4. The beverage of claim 1, wherein the beverageis calorie-free.
 5. The beverage of claim 1, wherein the beverage iscalcium-free.
 6. The beverage of claim 1, wherein the beverage iscalorie-free and calcium-free.
 7. The beverage of claim 1, wherein thepH is from 3.4 to 3.7.
 8. A beverage comprising: (1) 1.0 to 4.0 mmol/Lsodium citrate; (2) 3.0 to 7.5 mmol/L potassium citrate; (3) 15 to 25mmol/L citric acid; (4) 1 to 3 mmol/L magnesium hydroxide; and (5)1.5-3.5 mg/L pyridoxine, wherein the pH of the beverage is 3.3-7.0. 9.The beverage of claim 8 where the pH is 3.4 to 3.7.
 10. A beveragecomprising: (1) 3.33 mmol/L sodium citrate (2) 5.0 mmol/L potassiumcitrate; (3) 19.67 mmol/L citric acid; (4) 2.0 mmol/L magnesiumhydroxide; and (5) 2.5 mg/L pyridoxine, wherein the pH of the beverageis 3.5.
 11. The beverage of claim 7 wherein the beverage iscalcium-free.
 12. The beverage of claim 7 wherein the beverage iscalorie-free.
 13. A kit comprising: (a) a composition provided as apowdered mix, a concentrate or a tablet, said composition comprisingsodium citrate, potassium citrate, citric acid, magnesium hydroxide, andpyridoxine in amounts such that a beverage prepared from it will have1.0 to 4.0 mmol sodium citrate, 3.5 to 7.5 mmol potassium citrate, 15 to25 mmol citric acid, 1 to 3 mmol magnesium hydroxide, and 1.5 to 3.5 mgpyridoxine per liter, and a pH of 3.3 to 7.0; (b) a set of instructions,said instructions describing how to prepare a beverage using thepowdered mix, concentrate or the tablet, and describing the frequencyand volume of the beverage to be consumed by an individual.
 14. The kitof claim 13, wherein the prepared beverage will have 3.33 mmol sodiumcitrate, 5.0 mmol potassium citrate, 19.67 mmol citric acid, 2.0 mmolmagnesium hydroxide, and 2.5 mg pyridoxine per liter, and a pH of from3.4 to 3.7.
 15. A kit comprising: a) a plurality of individuallyportioned powdered mixes, concentrate or tablet, wherein the contents ofeach portion when mixed with a preselected amount of water, will make abeverage having 1.0 to 4.0 mmol sodium citrate, 3.5 to 7.5 mmolpotassium citrate, 15 to 25 mmol citric acid, 1 to 3 mmol magnesiumhydroxide, and 1.5 to 3.5 mg pyridoxine per liter; b) the preselectedamount of water for making the beverage from the contents of eachindividual portion or instructions on how much water is required to makesaid beverage and directions for making said beverage.
 16. The kit ofclaim 15, wherein each portion is present in a paper package, pouch, orblister package.
 17. A beverage concentrate comprising sodium citrate,potassium citrate, citric acid, magnesium salt and pyridoxine.
 18. Thebeverage of claim 9 wherein the beverage is calcium-free.
 19. Thebeverage of claim 9 wherein the beverage is calorie-free.
 20. Thebeverage of claim 1, wherein the pH is from 3.3 to 7.0.
 21. A beveragecomprising sodium citrate, potassium citrate, citric acid, magnesiumsalt and pyridoxine, wherein the beverage is calorie-free, calcium-freeor both.
 22. A beverage comprising sodium citrate, potassium citrate,citric acid, magnesium salt and pyridoxine, wherein the beverage has apH of 3.4 to 3.7.